How common is it for people to think marriage is unnecessary? I don't dislike kids but I don't think I would want any of my own. Also, marriage seems like a silly concept. The pomp and circumstance around them is really expensive and marriage itself causes lots of legal changes/problems. If you really love someone and want to be with them why don't you both just be adults and commit to each other instead of having to make it so official?
Since I'm not serious with anyone this isn't a time critical discussion, but (maybe unnecessarily so) every time I think about asking a girl out I'm concerned if we do get together what will happen when she hears I don't want kids and think that marriage isn't necessary. Not as worried about the kids thing, but I can just see like 95% of women give me a "what the hell is wrong with you?" look when I mention the marriage thing. I don't want to make assumptions here but it seems like marriage is a fantasy for lots of younger women.
Also, the other problem I have with marriage is at least half fail and even more people stay in marriages where they dislike the other person because it is too expensive to get out of or they have kids to take care of. That is why I think the expense of getting married and all the ceremony, legal changes, etc. is overkill. Also, a woman will probably NOT sign a prenuptial agreement and even though you HOPE you can trust her people can change a lot in 5-10 years or even a couple years. Some people also reveal things about themselves that they would never say when they thought their relationship wasn't as stable (before marriage). I've seen plenty of people have marriages that ended up where people got screwed (losing half a life's worth of possessions, alimony, child support, etc.) and quite frankly I'm paranoid about the *chance* that could happen to me.